Roki Sasaki

Roki Sasaki

23-Year-Old PitcherSP
Los Angeles Dodgers
2025 Fantasy Outlook
As a 20-year-old NPB phenom, Sasaki threw a perfect game and followed that up with eight perfect innings in his next start. Three years later, he's set to get his shot at the MLB level. He's sure to generate a ton of interest due to his youth and potential, but there's plenty of downside with Sasaki as well. First and foremost are durability concerns. He topped out at 20 starts and 129.1 innings in 2022 and has averaged 16.5 starts and 101 innings over the last two years while battling oblique and arm issues. He's taking steps to address those concerns by decreasing his fastball velocity and pitching to contact more often, with his fastball now sitting in the upper 90s instead of triple digits and his K% falling from 39.1% in 2023 to 28.6% in 2024. That could mean Sasaki is simply getting worse rather than making a conscious decision to stay healthy, as it did result in a career-high ERA - but when a 2.35 ERA represents a career high, expect MLB teams to remain very interested. Read Past Outlooks
RANKS
Rest of Season From Preseason
#105
ADP
$Signed a one-year contract with the Dodgers in March of 2025.
Logs first quality start
PLos Angeles Dodgers
April 19, 2025
Sasaki did not factor into the decision in Saturday's 4-3 loss to the Rangers. He allowed two runs on two hits and three walks while striking out four across six innings.
ANALYSIS
Sasaki has shown gradual improvement over his five starts this season, and Saturday's outing was arguably his best yet. His only blemish came in the third inning, when he yielded a two-run homer to Kyle Higashioka, but Sasaki was able to make it through six frames on 78 pitches (49 strikes) while generating 16 first-pitch strikes to the 22 batters he faced. Over his last three starts, Sasaki has registered a 2.40 ERA, 1.07 WHIP and 11:7 K:BB across 15 innings. He'll look to earn his first win of his major-league career in his next start, which is tentatively lined up for next weekend at home against the Pirates.
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Pitching Stats
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2025
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Pitching Appearances Breakdown
Average Pitch Count
69
Last 10 Games
69
Last 5 Games
69
How many pitches does Roki Sasaki generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Roki Sasaki generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
 
 
-23%
BAA vs LHP
2025
 
 
-15%
BAA vs LHP
2024
 
 
-100%
BAA vs LHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .154 52 11 13 6 0 0 1
Since 2023vs Right .200 48 8 8 8 0 0 1
2025vs Left .171 45 10 10 6 0 0 1
2025vs Right .200 41 6 6 7 0 0 1
2024vs Left .000 7 1 3 0 0 0 0
2024vs Right .200 7 2 2 1 0 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-31%
ERA on Road
2025
 
 
-32%
ERA on Road
2024
 
 
-100%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 4.05 1.95 6.2 0 1 0 6.8 8.1 1.4
Since 2023Away 2.81 1.38 16.0 0 0 0 7.9 8.4 0.6
2025Home 4.05 1.95 6.2 0 1 0 6.8 8.1 1.4
2025Away 2.77 1.23 13.0 0 0 0 7.6 6.9 0.7
2024Home 0 0 0 0 0 0 0 0 0
2024Away 3.00 2.00 3.0 0 0 0 9.0 15.0 0.0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Roki Sasaki compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
1.00
 
K/9
7.3
 
BB/9
7.3
 
HR/9
0.9
 
Fastball
96.6 mph
 
ERA
3.20
 
WHIP
1.47
 
BABIP
.218
 
GB/FB
1.28
 
Left On Base
84.0%
 
Exit Velocity
85.9 mph
 
Barrels/BBE
8.7%
 
Spin Rate
1767 rpm
 
Balls Hit 95+ MPH
31.5%
 
Swinging Strike
9.8%
 
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Shows improvement again Saturday
PLos Angeles Dodgers
April 12, 2025
Sasaki (0-1) took the loss against the Cubs on Saturday, allowing one run on four hits and two walks while striking out three batters over five innings.
ANALYSIS
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Strikes out four in no-decision
PLos Angeles Dodgers
April 5, 2025
Sasaki did not factor into the decision in Saturday's 3-1 win against the Phillies, allowing one run on three hits and two walks with four strikeouts over four innings.
ANALYSIS
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Struggles with control again
PLos Angeles Dodgers
March 29, 2025
Sasaki completed 1.2 innings against Detroit in a no-decision Saturday, allowing two runs on three hits and four walks while striking out two batters.
ANALYSIS
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No-decision in MLB debut
PLos Angeles Dodgers
March 19, 2025
Sasaki didn't factor in the decision Wednesday against the Cubs in Tokyo after giving up one run on one hit and five walks over three innings. He struck out three.
ANALYSIS
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Added to roster ahead of debut
PLos Angeles Dodgers
March 17, 2025
The Dodgers selected Sasaki's contract Tuesday ahead of the team's two-game series versus the Cubs in Tokyo.
ANALYSIS
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Latest Fantasy Rumors
Toronto trying to add pool cash
PFree Agent
January 17, 2025
The Blue Jays are attempting to trade for international bonus pool money as they await Sasaki's decision, Shi Davidi of Sportsnet.ca reports.
ANALYSIS
The Dodgers and Padres have been working to do the same thing, although San Diego reportedly has been informed it's out of the running to sign Sasaki. While the Dodgers remain the overwhelming favorites to land the Japanese hurler, the Blue Jays continue to do everything they can to put their best foot forward.
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